scholarly journals Holographic grating formation in a colloidal suspension of silver nanoparticles

2006 ◽  
Vol 31 (4) ◽  
pp. 447 ◽  
Author(s):  
James R. Adleman ◽  
Helge A. Eggert ◽  
Karsten Buse ◽  
Demetri Psaltis
Keyword(s):  
Silver Nanoparticles ◽  
Colloidal Suspension ◽  
Holographic Grating ◽  
Grating Formation

scholarly journals Laser Raman Spectroscopy with Different Excitation Sources and Extension to Surface Enhanced Raman Spectroscopy

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Md. Wahadoszamen ◽  
Arifur Rahaman ◽  
Nabil Md. Rakinul Hoque ◽  
Aminul I Talukder ◽  
Kazi Monowar Abedin ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Rhodamine 6G ◽  
Detection Efficiency ◽  
Colloidal Suspension ◽  
Surface Enhanced Raman Spectroscopy ◽  
Laser Raman Spectroscopy ◽  
Raman Signal ◽  
Fluorescence Signal ◽  
Present System

A dispersive Raman spectrometer was used with three different excitation sources (Argon-ion, He-Ne, and Diode lasers operating at 514.5 nm, 633 nm, and 782 nm, resp.). The system was employed to a variety of Raman active compounds. Many of the compounds exhibit very strong fluorescence while being excited with a laser emitting at UV-VIS region, hereby imposing severe limitation to the detection efficiency of the particular Raman system. The Raman system with variable excitation laser sources provided us with a desired flexibility toward the suppression of unwanted fluorescence signal. With this Raman system, we could detect and specify the different vibrational modes of various hazardous organic compounds and some typical dyes (both fluorescent and nonfluorescent). We then compared those results with the ones reported in literature and found the deviation within the range of ±2 cm−1, which indicates reasonable accuracy and usability of the Raman system. Then, the surface enhancement technique of Raman spectrum was employed to the present system. To this end, we used chemically prepared colloidal suspension of silver nanoparticles as substrate and Rhodamine 6G as probe. We could observe significant enhancement of Raman signal from Rhodamine 6G using the colloidal solution of silver nanoparticles the average magnitude of which is estimated to be 103.

Holographic grating formation in dry photopolymer film with shrinkage

2004 ◽  
Vol 13 (9) ◽  
pp. 1428-1431 ◽  
Author(s):  
Luo Shou-Jun ◽  
Liu Guo-Dong ◽  
He Qing-Sheng ◽  
Wu Min-Xian ◽  
Jin Guo-Fan ◽  
...  
Keyword(s):  
Holographic Grating ◽  
Grating Formation

Holographic Grating Formation in Photochromic Diarylethene-Doped Polymeric Thin Films

2004 ◽  
Vol 22 (1) ◽  
pp. 107-109 ◽  
Author(s):  
Luo Shou-Jun ◽  
Liu Guo-Dong ◽  
He Qing-Sheng ◽  
Jin Guo-Fan
Keyword(s):  
Thin Films ◽  
Holographic Grating ◽  
Polymeric Thin Films ◽  
Grating Formation

High Intensity Response of Photopolymer Materials for Holographic Grating Formation

2010 ◽  
Vol 43 (22) ◽  
pp. 9462-9472 ◽  
Author(s):  
Shui Liu ◽  
Michael R. Gleeson ◽  
Jinxin Guo ◽  
John T. Sheridan
Keyword(s):  
High Intensity ◽  
Holographic Grating ◽  
Intensity Response ◽  
Grating Formation

Holographic Grating Formation in Cationic Photopolymers with Dark Reaction

2006 ◽  
Vol 23 (11) ◽  
pp. 2960-2963 ◽  
Author(s):  
Wei Hao-Yun ◽  
Cao Liang-Cai ◽  
Gu Claire ◽  
Xu Zhen-Feng ◽  
He Ming-Zhao ◽  
...  
Keyword(s):  
Holographic Grating ◽  
Dark Reaction ◽  
Grating Formation

scholarly journals Modeling the photochemical effects present during holographic grating formation in photopolymer materials

2007 ◽  
Vol 102 (2) ◽  
pp. 023108 ◽  
Author(s):  
Michael R. Gleeson ◽  
John V. Kelly ◽  
Dusan Sabol ◽  
Ciara E. Close ◽  
Shui Liu ◽  
...  
Keyword(s):  
Holographic Grating ◽  
Grating Formation

Holographic grating formation in dye doped polymer dispersed liquid crystals

1998 ◽  
Vol 150 (1-6) ◽  
pp. 297-304 ◽  
Author(s):  
G. Cipparrone ◽  
A. Mazzulla ◽  
F.P. Nicoletta ◽  
L. Lucchetti ◽  
F. Simoni
Keyword(s):  
Liquid Crystals ◽  
Holographic Grating ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed ◽  
Doped Polymer ◽  
Grating Formation
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